PA Systems — Public Address
Compact desktop constant-voltage amplifier for background music playback and announcements in small venues: cafés, classrooms, shops. Plays MP3 from USB/TF card and via Bluetooth, with LCD display and power-off memory.
Features
- Three models: 20 W, 40 W and 60 W
- 100 V constant-voltage or 4–16 Ω constant-resistance output
- 1 priority microphone input + 2 line inputs with independent volume
- Plays MP3, WMA, APE, FLAC, WAV, AAC from USB / TF card + Bluetooth
- Short-circuit, overload and over-temperature protection
Technical specifications
| T-B20 | T-B40 | T-B60 | |
|---|---|---|---|
| Rated output power | 20 W | 40 W | 60 W |
| Speaker output | 4–16 Ω / 100 V | ||
| Input sensitivity | MIC: +5 mV, unbalanced 6.3 mm; AUX: 350 mV, RCA | ||
| Tone | Bass: 100 Hz ±10 dB; Treble: 10 kHz ±10 dB | ||
| Frequency response | 80 Hz – 16 kHz (−3 dB) | ||
| SNR | ≥75 dB | ||
| THD | ≤1% | ||
| Power supply | ~220 V, 50 Hz | ||
| Power consumption | 40 W | 80 W | 120 W |
| Dimensions | 284 × 188 × 66,5 mm | ||
| Weight | 2,8 kg | 3,5 kg | 4,2 kg |